title: Classification of menstrual cycles in pre- and perimenopausal women.
mesh_terms: D000328:Adult; D004967:Estrogens / Q000652:urine; D005260:Female; D005640:Follicle Stimulating Hormone / Q000652:urine; D006801:Humans; D008137:Longitudinal Studies; D007986:Luteinizing Hormone / Q000652:urine; D008593:Menopause; D008598:Menstruation; D008875:Middle Aged; D010060:Ovulation; D011276:Pregnanediol / Q000652:urine
chemical_list: D004967:Estrogens; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D011276:Pregnanediol